Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {11, 23, 15, 5, 8, 3} → ______
- Prime numbers in {2, 23, 5, 8, 15, 13} → ______
- Prime numbers in {25, 15, 13, 17, 7, 2} → ______
- Prime numbers in {8, 5, 9, 19, 11, 21} → ______
- Prime numbers in {15, 29, 11, 5, 27, 17} → ______
- Prime numbers in {7, 19, 3, 17, 13, 5} → ______
- Prime numbers in {12, 3, 17, 19, 2, 25} → ______
- Prime numbers in {21, 27, 19, 29, 2, 15} → ______
- Prime numbers in {11, 3, 5, 12, 29, 2} → ______
- Prime numbers in {27, 5, 29, 7, 2, 13} → ______
- Prime numbers in {21, 13, 8, 11, 29, 9} → ______
- Prime numbers in {29, 19, 17, 21, 9, 3} → ______
- Prime numbers in {25, 13, 27, 11, 9, 21} → ______
- Prime numbers in {11, 12, 17, 23, 7, 21} → ______
- Prime numbers in {19, 21, 5, 12, 27, 23} → ______
- Prime numbers in {12, 21, 17, 5, 11, 29} → ______
- Prime numbers in {27, 3, 19, 7, 17, 23} → ______
- Prime numbers in {15, 25, 27, 2, 5, 23} → ______
- Prime numbers in {17, 21, 7, 23, 11, 8} → ______
- Prime numbers in {7, 21, 5, 13, 27, 3} → ______